bultman



C. C. BULTMANQ SURFACING MACHINEFOR BOWLING ALLEYS.

APPLICATION FILED IULY 2. NH].

1 ,3 9,041 Patont'ml Oct. 21, 1919.

6 SHEETSSHEH I.

C. C. BULTMAN.

SURFACING MACHiNE FOR BOWLING ALLEYS.

APPLICATION HLED lULY 2. I91]. 1,319,041. Patented Oct. 21,1919.

6 SHEETS-SHEEI' 2' 'aa 156 54 5a C. C. BULTMAN.

SURFACING MACHINE FOR BOWLING ALLEYS.

APPLICATION FILED JULY 2. I911.

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Patented Oct. 21, 1919.

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sum/acme MACHINE FOR sowuua ALLEYS.

APPLICATION FILtU JULY2.1917.

1,319,041 1 latenfcd 1m. 21,1919.

5 SHEETS-$115134.

C. C. BULTMAN.

SURFACING MACHINE FOR BOWLING ALLEYS.

mwucmou nun 1111.11 2. 1911.

1,319,041. Patented 001. 21,1919.

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UniTED STATES PA :1 ornioa.

' BUS C. BULTMAN, OF CLEVELAND, OHIO, ASSIGNOR TO THE BRUNSWICK-BALE- GOLLENDEE COMPANY, OF OHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

SUBFACLNG-MACHTNE FOB, BOWLING-.ALLEYS.

Specification of Letters Patent.

Application filed. July 2, 1917. Serial No. 178,073.

To all whom it may concern.

Be it known that I, CYRUS C. BULTMAN, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Surfacing-Machines for Bowling-Alleys, of which the following is a specification.

The pr1mary object of my invention is the.

provision ofv a self propelled and easily con- .trpllable machine carrying means actuated 7 whereby the machine may be taken down for transportation and in the various combinations of elements whereby the structure and operation of the machine is simplified as will be better understood by reference to the following specification when read in connection wit the accompanying drawing, illustrating the preferred embodiment thereof, in which Figure 1 is a plan view of the machine with the hoods removed;

Fig. 2 is a side elevation of the machine;

Fig. 3 is a longitudinal section through the machine; a

Fig. 4 is a front elevation of the machine- Fig. 5 is a section on the line 5-5 of ig. 6 is a section through the abradmg drum and adjusting means therefor- Fig. 7 is a section on the line 7-7 of Fig. 6-

. Fig. 8 is a section on theline 8-8 of Fi 6 Fig. 9 is a section on the line 99 of Fi 2' FigflO is a section on the line 10--10 of ig. 11 is a deta1l 1n section illustrating the actuating eccentric for reciprocating the abrading drum, and

Fig. 12 is a detail in section illustrating the connection of the polisher to its operat ing mechanism.

to remove debris from the pat Referring to the drawing, 5 indicates a frame carr 'ng a platform 6 and supported on forwar and rear wheels 7 and 8, respectively, the latter being the driving wheels and actuated from the motor 9 mounted on the platform 6 in the manner presently to be described.

Supported on the frame 5 near its forward end within a housing 10 is a transversely extending shaft 11 having a sprocket 12 fixed thereto which is drlven by a chain 13 from a sprocket 14 on the shaft 15 of the motor 9. The shaft '11 is provided with a worm 16 meshing with a worm gear 17 on a shaft 18 extending longitudinally of the frame 5. A worm 19 on the shaft 18 meshes with a worm (Fig. 9) whi is loose on the transverse shaft 22 to which the driving wheels 8 are secured. The pinion 21 meshes with a gear 22 (Fig. 10) mounted on a jack shaft 23 and carrying a pinion 24 which meshes with a gear 25 loose on the shaft 22. The gear 25 is provided with clutch teeth 26 and a correspondin clutch element 27 is splined to the shaft 22. A lever 28 is pivotally molmted at 29 on the frame and is adapted to throw the clutch element 27 into mesh with the clutch teeth 26 to connect the shaft 22 to the driving mechanism and thus operate the driving wheels 8 at reduced speed. An operating handle29 is-connected to the lever 28 so that the clutch may be thrown Patented Oct. 21, 1919.

gear 20 keyed to a pinion 21. c

from either side of the machine. Scrapers 30 are mounted in suitable brackets 31 on wheels 8 of the wheels. Brushes 32 are similarly mounted on the frame and engage the eriphe of the wheels 8 to remove any ebris w ich mi ht otherwise accumulate thereon.

the frame 5 in front of the drivin ecured to the frame 5 adjacent the ends of the shaft 11 are housings 33 removably secured by bolts 33 to the frame 5 (Flg. 5) which support short shafts 34 having clutch teeth 35 at their inner ends cooperating with corresponding clutch teeth 36 on the outer ends of the shaft 11. Rigid side members 36 are pivotally mounted ad'acent the ends of the shafts 3 1 and exten forwardly from the frame to support the transverse shaft 37 which is mounted at its ends in suitable hearings on the members 36 and supports the abrading roll 38, the latter having an abrading surface consisting preferably of sandpaper secured to its surface. Theshaft 37 is driven from the shafts 34 by chains 39 engaging sprockets 40 and 41 on the shafts 34 and 37, respectively. The outer ends of the members 36 are connected by a rod 42 on which is supported a bracket 43 carrying a spirit level 44. The rod 42 is parallel to the shaft 37 and consequently the sp1r1t level 44 indicates when the abrading surface of the drum 38 is level.

The shaft 37 is connected at one end to a lever 45 (Fig. 1) pivoted at 46 on oneof the members 36 and in turn connected by a rod 47 to a lever 48 pivoted at 49 on the housing 10. A rod 50 connects the lever 48 to an eccentric collar 51 (Fig. 11) mounted on the eccentric 52 which is fast to the shaft 18. Thus as the shaft 18 rotates the shaft 37 is reciprocated, moving the drum 38 slightly from side to side and preventing scoring of the alley bed should the abradingsurface of the drum be slightly imperfect.

The outer ends of the members 36 are pivotally connected to and supported on frames -53 (Figs. 6 and 8) to which shoes 54 are adjustably connected. I The shoes 54 are provided with rollers 55 for engagement wlth the alley bed. The shoes 54 are provided with upwardly extending screws 56 slidably mounted within suitable openings in the frames 53. Worm gears 57 are threadedly mounted on the screws 56 and bear at either side on the interior walls of the frame as clearly shown in Fig. 8. Shafts 58 carrying hand wheels 59 are rotatably mounted in the frames 53 and are provided with worms 60 meshing with the worm gears .57. By operating the hand wheels 59 the outer ends of either of the members 36 may be raised or lowered, causing a corresponding movement of the abrading surface of the drum 38 relative to the alley bed. Thus the abradin surface may be maintained level as indicated by the spirit level 44.

As the machine approaches the end of the alley bed the shoes 54 pass out over the pit and in order that the end may be properly surfaced it is necessary to provide auxilia supporting means for the members 36. For this purpose I provide a transverse member 61 (Figs. 1 and 6) connecting the members 36. Adjacent its ends the member 61 is supported in boxes 62 slidably mounted in U-shaped members 63 carrying rollers 64 at the extremities of their arms for engagement with the alley bed. The boxes 62 are connected to the ends of screws 65 threadedly mounted in the U-shaped member 63 and provided with hand wheels 66. By r0- tating the hand wheels 66 the ends of the member 61 and consequently the members 36 may be vertically adjusted relatively to the arms 68 thereon having bifurcated ends embracing the member 61. A sector 69 is secured to the shaft 67 and isprovided at its upper end with teeth meshing with a worm 70 on a shaft 71 journaled in a bracket 72 on the frame 5. A gear 73 on the shaft 71 meshes with a pinion 74 on a shaft 75 mounted in an arm of the bracket 72. A hand wheel 76 is secured to the shaft 7 5 and upon rotation of the latter the arms 38 may be raised or lowered to swing the members 36 toward and away from the alley bed. Thus the drum 38 may be quickly raised when necessary from engagement with the alley bed.

At the rear of the machine a frame 77 (Fig. 3) is removably secured by suitable bolts to the frame 5 and carries at its outer end a vertical shaft 78 adapted to be raised and lowered by means of a lever 79 pivotally mounted at 80 on a bracket 81 secured to the frame 77. One arm of the lever 79 engages a' collar 82 on the-upper end of the shaft 78 and the other a collar 83 embracing a screw 84 projecting upwardly from the frame 77. The collar 83 is provided with a hand wheel 85 and by operating the hand wheel the collar 83 may be moved vertically on its screw 84 to control the shaft 78. A housing 86 forming part of the frame 77 supports a sleeve 87 which surrounds and is splined to the shaft 78. The sleeve 87 is provided at its lower end with a bevel pinion 88 meshing with a bevel gear 89 fast to the shaft 90 which is detachably connected at 91 to the shaft 18.

The lower end of the shaft 78 is provided with a head 92. (Fig. 12) having depending ears 93 in which a block 94 is pivotally hung. A polishing head 95 is pivotally supported on the block 94, the construction being such that the polishing head has -a universal movement with respect to the shaft 78 andmay consequently follow the surface of the alley 98 is mounted on the frame 5 and is driven 130 from a sprocket 99 (Fig. 5) on the shaft 11 by a chain 100 (Fig. 1) which actuates a corresponding sprocket on the shaft 101 of the blower. The inlet to the blower is connected by a pipe 102 (Fig. 2) to the hood 96 surrounding the abrading drum 38. The outlet side of -the blower is connected by a pipe 103 to a dust bag 104 supported on the frame 5. When the polishing mechanism is in operation the pipe 102'is removed and a pipe 105, indicated in Fig. 2, connects the hood 97 to the inlet side of the blower. It is understood that it is my intention to operate the abrading drum 38 and the polishing mechanism separately and consequently permanent connections between both the hoods 96 and 97 and the blower are not essential. However, such a connection may be provided and overcomes the inconvenience of changing the pipes 102 and 105 in accordance with the operation about to be carried out. The members 36 are provided at their extremities with laterally projecting arms 106 carrying rollers 107 adapted to engage the sides of-the alley and similarly the rear end of the frame 5 is provided with arms 108 carrying rollers 109. The engagement of the rollers 10'? and 109'with the sides of the alley insure proper alinement of the machine and assists materially in the successful operation thereof.

From the foregoing it will be readily understood that I have perfected a compact and easily operable machine for leveling and polishing alley beds. The structure is particularly designed to permit various parts thereof to be readily removed so that the machine may be taken down and transported from place to place as needed. The mecha-' nism is so controlled that the worn surface of an alley bed may be quickly reduced to a level with a great saving of labor and expense as compared with th usual manual treatment of such surfaces.

It will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing any of its material advantages, the form hereinbefore described be-.

ing merely a preferred embodiment thereof.

I claim: a 1. In a machine of the character described, the combination of a movable supporting carriage, members pivotally supported thereon and extending forwardly ported thereon and extending forwardlying connections between said drum and end I sections.

-3. In a machine of the character described, the combination of a movable supporting carriage, a transverse driving shaft having separable end sections, members pivotally supported on said sections and extendingforwardly therefrom, an abrading drum journaled in said members, a driving connection between said drum and sections, means for adjustably supporting the forward extremities of said members, and auxiliary supporting means for said members intermediate said drum and shaft.

4. In a machine of the character described, the combination of a frame, members pivotally mounted in both sides of said frame and projecting forwardly therefrom,

an abrading drum journaled in said mem-' bers, means for rotating said drum, and means for bodily lifting said drum and members including a transverse connecting member, a shaft on said frame, bifurcated means on said shaft engaging said connecting member, and means for oscillating said shaft.

5. In a machine of the character described, the combination of a frame, members pivotally mounted in both sides of said frame and projecting forwardly therefrom, an abrading drum journaled in said members, means for rotating said drum, and

means for bodily lifting said drum and members including a transverse connecting member, a shaft on said frame, bifurcated means on sald shaft engagmg said connecting member, and means for oscillating said shaft, including a toothed sector connected to said shaft, and means for actuating said sector.

6. In a machine of the character described, the combination of a frame, members pivotally mounted in both sides of said frame and projecting forwardly therefrom, an abrading drum journaled in said members, means for rotating said drum, and means for bodily lifting said drum and members including a transverse connecting member, a shaft on said frame, bifurcated means on said shaft engaging said connecting member, and means for oscillating said shaft, including a toothed sector connected to said shaft, a hand wheel mounted on said frame and operative connections between said hand wheel and sector.

7. In a machine of the character described, the combination of a frame, members pivotally mounted in both sides of said frame and projecting forwardly therefrom, an abradmg drum journaled' in said members,

means for rotating said drum, and means for bodily lifting said. drum nd members including a transverse connecting member,

surface of said drum to the surface to beabraded, including shoes mounted on the forward extremities of said members and having rollers to engage the latter surface, and means for adjusting said shoes relative to said members.

9. In a machine of the character described, the combination of a frame, members pivotally mounted on both sides of said, frame and projecting forwardly therefrom, an abrading drum journaled in said members, means for rotating said drum, and means for adjusting the angular relation of the surface of said drum to the surface to be abraded, including frames pivotally connected to the extremities of said members, shoes having screws projecting into said frames, means within said frames threadedly engaging said screws, and manually operable means for actuating the latter means.

10. In a machine of the character described, the combination of a movable supporting carriage, an abrading drum supported on said carriage, polishing means supported on said carriage, hoods surrounding said abrading drum and polishing means, a suction blower upported on said carriage, a dust bag connected to the outlet of said blower, and means for connecting either of said hoods to the inlet of said blower.

11. In a machine of the character described, the combination of a movable supporting carriage, an abrading drum supported on said carriage, polishing means supported on said carriage, hoods surrounding said abrading drum and polishing means, a suction blower supported on said carriage, a dust bag connected to the outlet of said blower, means for connecting either of said hoods to the inlet of said blower,

and means for raising said drum from the surface to be treated while said polishing means is in operation.

12. In a machine of the character describedfthe combination of a frame, a driving shaft=-mounted in said frame, said shaft being in separable sections connected end to end, members pivotally mounted on the outer section of said shaft at both sides of said frame and projecting forwardy therefrom, an abrading drum journaled in said members, means for rotating said drum from said shaft, and means for adjusting the angular relation of the surface of said drum to the surface to be abraded, including shoes mounted on the forward extremities of said members and having rollers to engage the latter surface, and means for adjusting said shoes relatively to said members.-

18. In a machine of the character described, the combination of a frame, a driving shaft in said frame, said shaft being in separable sections connected end to end, members pivotally mounted at both sides of said frame and projecting forwardly therefrom, an abrading drum journaled in said members, means for rotating said drum from said shaft, and means for adjusting the angular relation of the surface of said drum to the surface to be abraded, including shoes mounted on the forward extremities of said members, and means for adjusting said shoes relatively to said members.

let. In a machine of the character described, the combination of a frame, a driving shaft in said frame, said shaft comprising a centrally disposed rigid section and separable end sections, members pivotally mounted at both sides of said frame and projecting forwardly therefrom, an abrading drum journaled in said members, driving connections between said separable sections and the drum for rotating the latter, power means for rotating said driving shaft, a worm on said central section, a shaft supported in the frame and extending longitudinally of the machine, a worm gear on said shaft meshing with said worm, driving wheels, a shaft carrying said wheels and supported in the frame, a worm gear on said last mentioned shaft, and a worm on said longitudinal shaft meshing with said last mentioned worm gear.

CYRUS G. BULTMAN.

Witnesses:

H. H. BULTMAN, Jr., DAVID L. SHAW. 

